Synestrology generates personal readings that synthesize three systems into a single portrait: Western Tropical Astrology, Human Design, and Pythagorean Numerology.
Most services treat these systems in isolation. You get an astrology reading here, a Human Design chart there, a numerology report somewhere else. The patterns that live between the systems go unspoken. Synestrology exists because those cross-references are where the real insight lives.
Your natal chart, bodygraph, and core numbers are calculated from your birth data with astronomical precision and woven into a cohesive narrative about who you are, how you operate, and what this particular chapter of your life is asking of you.
We don't believe in these systems because they're mystical. We pay attention to them because they're useful. Astrology, Human Design, and numerology are each, in their own way, languages for describing patterns in human experience. When you overlay them, the signal gets stronger.
Shadow and light are given equal weight here. A reading that only tells you what you want to hear isn't a reading. It's flattery. We're interested in the full picture, including the parts that are harder to look at, because that's where the real material lives.
We also take the body seriously. Where tension shows up, where energy moves freely, where the nervous system gets activated. A reading that lives only in the mind is half a reading. The body knows things the mind hasn't caught up to yet.
Synestrology is not a replacement for working with a human practitioner. A skilled astrologer, Human Design analyst, or therapist brings something that no automated system can: presence, intuition, the ability to respond to what's happening in the room. The relational field between practitioner and client is itself a kind of medicine.
What we offer is different in kind, not better. Think of it as a detailed map you can study on your own time, at your own pace. A reference document. A mirror. It's meant to complement the work you might do with a practitioner, give you language for what you already sense, and open doors you can walk through in your own way.
If a reading sparks something that feels like it needs a human conversation, go find that conversation. We'd rather you outgrow this tool than depend on it.
You provide your full birth name, date of birth, birth time, and birth location. Your natal chart is calculated using the Swiss Ephemeris, the same astronomical engine used by professional astrologers and research institutions worldwide. Your Human Design bodygraph is computed from the same ephemeris data using our in-house calculation engine. Your numerology profile is derived from your full birth name and date.
All three data sets are then synthesized into a single reading by Claude, Anthropic's AI, guided by a detailed prompt that cross-references patterns across all three systems. The output is a 3,000+ word personal report delivered as a branded PDF to your email.
Every placement cited in your reading comes directly from the calculation data. Nothing is guessed. Nothing is invented. The interpretation is where the craft lives, and the data keeps it honest.
Your natal chart positions are computed by the Swiss Ephemeris to within fractions of an arc-second. That's the same precision used by NASA's Jet Propulsion Laboratory. We cross-validate our planetary positions against NASA JPL Horizons data to confirm accuracy. Your Human Design gates, channels, and centers are calculated from the same ephemeris with the same precision.
If you know your exact birth time, the reading includes house placements, your Ascendant, and a complete Human Design bodygraph. If your birth time is approximate or unknown, the reading adjusts accordingly and is honest about what it can and can't determine.
Three systems. One portrait.
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